BIOCHEMICAL ANALYSIS IN CONVENTIONAL AND TRANSGENIC SOYBEAN BY CHEMOMETRIC

CARLOS ALBERTO MOLDES; JOSÉ MANUEL CAMIÑA; SORAYA GABRIELA KIRIACHEK; SIU MUI TSAI; RICARDO ANTUNES AZEVEDO

Chascomus

Jornada; XV Jornadas Anuales de la Sociedad Argentina de Biología; 2013

Sociedad Argentina de Biología

The present work aim to determine the behavior of near parental soybean varieties: DM48 - DM4800RG and Msoy7501 - Msoy7575RR (conventional - transgenic respectively) through biochemical analysis and chemometric. Plants were grown during 5 weeks before the application of glyphosate. Catalase (CAT), guaiacol peroxidase (GPOX), ascorbate peroxidase (APX) activities, lipid peroxidation (MDA) and total amino acid (TAA) were determined in leaves and roots at 0 and 72 h after glyphosate application. Data were analyzed by principal component analysis (PCA). Loadings plot determined that CAT and APX were the most influent variables for grouping. In leaves, scores plot grouping conventional and transgenic varieties at 72 h after glyphosate treatment by CAT influence. In roots at 0 h, PCA analysis grouping the four varieties by influence of APX and at 72 h conventional and transgenic was grouped under the influence of CAT. As conclusion, differential behavior of biochemical parameters in transgenic and conventional soybean was noticeable through PCA analysis.